# Relationship history for MSHA mine 1514950

Current hierarchy: **Tommy G  Gambrel → Goldens Creek Enterprises Inc → Colonel Hollow**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** B D F Augering Company → Colonel Hollow; 1984-11-01 to 1989-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Jimmy  Daniel et al → Colonel Hollow; 1984-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jimmy  Daniel et al → B D F Augering Company; 1984-11-01 to 1989-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Daniel et al → B D F Augering Company; 1984-11-01 to 1989-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Tommy G  Gambrel et al → Colonel Hollow; 1986-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Goldens Creek Enterprises Inc → Colonel Hollow; 1989-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tommy G  Gambrel et al → Goldens Creek Enterprises Inc; 1989-02-01 to current/open; source msha-controller-operator-history